| 不同功率下柴油机主轴承弹性流体动力润滑分析 |
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| 引用本文： | 陈亮,薛冬新,宋希庚,明章杰.不同功率下柴油机主轴承弹性流体动力润滑分析[J].大连理工大学学报,2011,51(4):505-511. |
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| 作者姓名： | 陈亮 薛冬新 宋希庚 明章杰 |
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| 作者单位： | 1. 大连理工大学能源与动力学院内燃机研究所,辽宁大连,116024
2. 四川宏华石油设备有限公司技术部,四川广汉,618300 |
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| 摘 要： | 计算了某16缸V形机车柴油发电机组滑动主轴承在不同功率（2 000、2 430、2 650、2 940kW）下的润滑情况.将曲轴设为弹性体,以考虑曲轴弹性变形对主轴承润滑状态的影响.对主轴承在工作过程中发生的摩擦接触,采用Greenwood-Tripp粗糙接触模型来计算,并用AVL相关标准评价了润滑计算结果.由计算结果看出,4个计算工况中的2 940、2 650和2 000kW工况均存在个别轴承处于半干摩擦状态的情况,而2 430kW工况的润滑情况相对最好;第8、7、1主轴承为工作中相对危险的主轴承,危险主轴承位置和摩擦接触发生的部位与实际情况接近.试分析了造成第8、7、1主轴承出现摩擦接触的结构性原因.
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| 关 键 词： | 主轴承 弹性流体动力润滑 曲轴 弹性变形 粗糙接触 |
Analysis of elastohydrodynamic lubrication of diesel engine main bearings in different power conditions |
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| CHEN Liang,XUE Dongxin,SONG Xigeng,MING Zhangjie.Analysis of elastohydrodynamic lubrication of diesel engine main bearings in different power conditions[J].Journal of Dalian University of Technology,2011,51(4):505-511. |
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| Authors: | CHEN Liang XUE Dongxin SONG Xigeng MING Zhangjie |
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| Institution: | CHEN Liang1,XUE Dong-xin1,SONG Xi-geng1,MING Zhang-jie2(1.Institute of Internal Combustion Engine,School of Energy and Power Engineering,Dalian University of Technology,Dalian 116024,China,2.Department of Technology,Honghua Petroleum Equipment Co.Ltd.of Sichuan,Guanghan 618300,China) |
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| Abstract: | The lubrication conditions of the main bearings of a 16 cylinders V form diesel generator set in four operation conditions(2 000,2 430,2 650,2 940 kW) were simulated.The crankshaft was assumed as an elastic body to consider the deformation influence on lubrication performance of main bearings.Greenwood-Tripp asperity contact model was used to calculate the contact force in the friction area.Simulation results were examined by AVL criterion.Generator set is in the best lubrication condition at 2 430 kW work ... |
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| Keywords: | main bearing elastohydrodynamics lubrication crankshaft elastic deformation asperity contact |
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